Method and device for adjusting a display picture

Abstract

The present invention discloses a method and a device for adjusting a display picture to solve a problem in the prior art that when Greenish phenomenon of a liquid crystal display screen is alleviated, aperture ratio of the display panel is decreased so that power consumption of the screen is increased. The method for adjusting the display picture includes the steps of: receiving a first clock signal for controlling a data line voltage signal for a pixel of the first color in the display picture and receiving a second clock signal for controlling data line voltage signals for pixels of the other colors; and making a pulse width at high level of the first clock signal smaller than a high level pulse width of the second clock signal, wherein the first color is closer to green than other colors.

Description

FIELD OF THE INVENTION[0001]The present invention relates to the field of display technology, and particularly to a method and a device for adjusting a display picture.BACKGROUND OF THE INVENTION[0002]With the progressive development of the liquid crystal display technology and the price advantage of the liquid crystal display screen, the liquid crystal display screen is used as a display screen of various electronic apparatus in our lives or a decorative electronic display device, which has gradually become a trend of the liquid crystal display screen. The liquid crystal display screen in the prior art has been widely used in various kinds of electric appliances, e.g. a liquid crystal display television, a mobile telephone and so on.[0003]When a specific display picture is displayed on the liquid crystal display screen, a greenish phenomenon (i.e., Greenish (green flickering) phenomenon) may occur. FIG. 1 illustrates a timing diagram of voltage signals applied to the data lines of ...

AI Technical Summary

Benefits of technology

[0007]The present invention provides a method and a device for adjusting a display picture to solve the problem in the prior art that when Greenish phenomenon of a liquid crystal display screen is alleviated, aperture ratio of the display panel is decreased so that power consumption of the screen is increased.

[0022]In the above technical solutions, by shortening a time period during which a data line for the green pixel is maintained at a high level, the pixel voltage on the green pixel is lower than those on the red and blue pixels, so as to cancel out the sensitivity of the human eyes to green so that the same color display effect can be visually achieved for the three colors (green, red and blue); simply by making some control to the circuit of the liquid crystal display screen in the prior art, Greenish phenomenon of the liquid crystal display screen can be efficiently alleviated, without influencing the circuit arrangement for controlling the liquid crystal display panel and the aperture ratio of the display panel, therefore the problem in which the power consumption of the screen is increased while Greenish phenomenon is alleviated is efficiently solved.

Problems solved by technology

In the two methods described above, Greenish phenomenon is alleviated by changing the wiring on the printed circuit board, however, occurrence of Greenish phenomenon can not be solved from the fundamental reasons, and moreover, with the technical solutions in the above two methods, aperture ratio of the liquid crystal display screen could be decreased, causing increased power consumption of the screen.

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